Chemical-spraying nozzle.



.No. 88?;856. PATENTED MAY 19, 1908. .H. SIEBEN. CHEMICAL SPRAYI NG NOZZLE.

APPLICATION FILED MAY 14, 1906.

wiavz IICE.

KANSAS CITY, M ISSOITRI.

CHEMICAL-SPRAYING NOZZLE.

Specification of Letters Patent.

Patented May 19, 1908.

Application filed May 14, 1906. Serial No. 316,693.

To all whom it may concern:

Be it known that I, HENRY SIEBEN, a citizen of the United States, rcsldlng. at Kansas City, in the county of Jackson and State of Missouri, have invented certain new and useful Improvements in (.hcmical-Qpraying Nozzles, of which the following is a specilication.

This invention relates to chemical spraying nozzles, and more especially to that type provided with a chamber containing a chemical in the water passage so that the water discharged through the nozzle may be impregnated by such chemical, and my object is to produce a nozzle of this character which can be. charged and recharged when necessary, easily and expeditiously.

A further object is to produce a nozzle of this character from which the air in advance of the water, will be quickly expelled and thus avoid retarding the discharge ofthe. water to any perceptible extent.

still further object is to produce a nozzle of this character comprising a body member and acap member so connected that the pressure of the water will cause the joint between to be reliably closed against leakage.

A still further object is to produce a 'cartridgeof such character and arrangement that it will revolve under the pressure of the water and thus bring the chemical contents of such cartridge into more intimate relation with the water than if stationary, in order to more thoroughly impregnate the water with the fire-extinguishing, antiseptic, or other properties, as the case may be, of the chemical.

\Yith these objects in View the invention consists in certain novel and peculiar features of construct-ion and organization as hereinafter described and claimed; and in 3 order that it may be fully understood reference is to be had to the accompanying drawf Fig. 4, is a section on the dotted line IV of Fig. 1. Fig. 5, is a view of the front end of the nozzle. of the nozzle, with the cartridge therein and the pet-cock omitted. Fig. 7, is a side view Fig. (l, is a. view of the rear end of a portion of a cartridge of modified construction. 4 Fig. 8, isa plan of the gasket.

In the said drawing, 1 indicates a cylinder forming the, body portion of the nozzle, and provided at its rear end with a central opening 2, a centrally aperturcd cross bar and an internally threaded llangc Z3 sinrounding said opening and projecting rearwardly therefrom. The front end of the. cylinder is provided with a circular groove 4 containing a gasket 5 having an inwardly projecting flange 6 terminating at its inner margin in a rcarwardly projecting head 7. At one side the front end of the cylinder is provided with a pair of outwardly and forwardly projecting ears 8 and diametrically opposite said ears with an outwardly projecting arm 5).

10 indicates the cap-member of the nozzle, the same being of materially less diameter than the cylinder except at its rear end which flares at 11, to lit snugly down upon the, gasket 5, and said flared end is provided with an outwardly projecting lug 12 lit-ting between cars 8 and pivotedthcrcto at l3, and a lug 14 pivotally connected at 15 to and. between a pair of cars 17 of a link is; said link having a similar pair of cars 19 at its opposite end between which is pivoted at 20, a cam lever 21, adapted when the cap-member is closed down upon the cylinder to engage the underside of arm 9 and clamp said capmember and the cylinder firmly together.

The front end of the cap-member is widened and tapered at 22 and its extreme front end is flanged inward at 23 to provide a long narrow discharge orifice whereby the stream. ofwater is discharged in 'fanlike form to have a wide range of action.

24 indicates a foraminous cartridge prefer ably of cylindrical form and adapted to be dropped into the cylinder from its front end. It is provided at its rear end with a circular forwardly tapering chamber 25'and has a rigid axial tube 26 journaled at one end in the aperture of bar 2, and of length to project into the cap-member. The front end of the tube is diametrically reduced at 27 and journale-d in a rearwardly llared opening 28 of a cross bar 28 cast with or. otherwise secured in the flared end or mouth of said member.

29 indicates spiral blades secured in the tapered opening 25, and 30 a cap adapted to be slipped over the projecting front end of tridge and retain therein the chemical sub-' stance 31, which is preferably in the formof crystals.

Assuming that the cap-member is swung back in the direction indicated by the arrow a, on hinge or pivot 13, it will be apparent that the entire front end of the cylinder is unobstructed and that the, person in charge can easily and quickly drop a cartridge down into said cylinder. The cap-member is then swung back to its original position, in which action it will be noticed the flaring mouth 28 insures automatic reengagement of bar 28 with the reduced end 27 of tube 26. As the cap-member rengages the gasket the link is swung upon pivot or hinge-point 15 in the direction indicated by the arrow b, until the head of the cam lever 21 passes under arm 9, when said cam-lever in turn is pivotally operated as indicated by the arrow 0, for the urpose of clamping the cap-member firmly own upon the gasket, and locking it in such position because the plane intersecting the axes of pivots 15 and 20 is inward of the point of contact between the head of the cam-lever and said arm 9. With the parts in the relation described, the passage of the water through the nozzle results, through its action on blades 29, in revolving the cartridge, the engagement of rod 26 with cross bar 28 resistinglforward movement of the cartridge imder t e pressure imposed against its rear end. The water forces its way through the cartrid e and also around it and a small column 0 water also passes through the tube 26, this column, however, rejoining and being impregnated by the main volume of the water as it is discharged from the front end of the nozzle containing the proper fire-extinguishing, antiseptic or other property of chemical employed, the character of the chemical depending of course on the use-to which the nozzle is to be put.

The fact that the cartridge fits loosely in the cylinder and also the provision of the tube 26, permits of a practically instantane ous escape of the air in the hose when the water is turned on-so that the latter shall not be materially retarded by such air.

In lieu of the provision of the spiral blades 29 for effecting the rotation of the cartridge under the impact of the water passing through the nozzle, I may provide the cartridge with an external blade, the preferred method being to spirally groove the cylinder itself as shown at 32 in Fig. 7. By this arrangement the forcible ejection of the water against and around the cartridge will compel the latter to turn, the revolution of the cartridge in both cases serving to prevent thewater from forcing direct passages through the contents of the cartridge and thus as the chemical gradually dissolves, escape in'gradually increasing volume without impregnation. It is to be understood of course that I do not confine myself to a revolving cartridge as excellent effects in the way of impregnating the watercan be obtained without such revolving movement. In either case, however, I prefer to employ the tube 26 or its equivalent as a means of eflecting a quick ejection of the air from the hose to avoid materially retarding the ejectment of the water. I also contemplate the use of the gasket constructed substantially as shown because the pressure of the water against the underside of flange 6 and against the outer side .of the depending bead 7 will press the flange and bead forwardly and outwardly into the flaring mouth of the capmember and thus insure an absolutely watertight jointbetween the same and the cylinder. I have found in practice that the heavy pressure of the water upon the flaring mouth and contracted discharge end of the capmember results in leakage of water between the latter and the cylinder where the ordinary type of gasket is used because there is necessarily a certain amount of looseness in a joint locked by means of a link and camlever, and I have also found that for fire-hose this type of locking mechanism is essential because it permits the fireman to quickly and easily swing the cap-member from the end of the cylinder to permit of the removal ofa spent cartridge and the insertion of a new one. To protect the fireman handling the hose in proximity to a fire from being scorched and burned, I provide the nozzle at the rear end of the cylinder with a pet-cock 33, through which water will escape in a spray or mist in front of the fireman, it being understood that the spray or mist will be sufficiently fine to avoid obstructing the firemans view of the fire.

From the above description it will be apparent that I have produced a nozzle emodying the features of advantage enumerated as desirable in the statement of the object of-the invention and I wish it to be understood that changes may be made in the detail construction, form, arrangement and proportion of the parts without departing from the principle of construction involved.

Having thus I claim as new and desire to secure by Letters- Patent, is

1. The combination of a cylinder open at each end, a tubular cap-member secured to the front end of the cylinder and provided with a nozzle at its front end, a gasket clamped between the cylinder and cap and of smaller internal diameter than the former and provided at its inner margin with a rearwardly rejecting bead 7, a cross bar at the rear end of the cap, provided with a rearwardl 'flared'opening, a cartridge within the cylin er of diameter to slip through said gasket and a central rod secured rigidly to escribed the invention what and extending through the cartridge and fitting at its front end in the opening of the cross bar and provided with an enlargement the cylinder and provided with a nozzle and a perforated cross bar having a central open I ing, a cartridge fitting in the cylinder, and a rod rigid with and extending longitudinally through and projecting beyond the front end of the cartridge and fitting at such projecting end in the opening of said cross bar.

3. The combination of a cylinder having open ends, a cap-member reniovably closing the front end of the cylinder and provided with a cross bar having a bearing opening, a cartridge within the cylinder having an axial rod bearing at its front end in the opening of the cross bar, and means whereby the passage of water through the cylinder to the capmember causes said cartridge to rotate.

4. The combination of a cylinder having open ends, a cap-member removably closing t e front end of the cylinder and provided with a cross bar having a bearing opening, a cartridge within the cylinder having an axial rod hearing at its front end in the opening of the cross bar, and an apertured cross bar in the cylinder engaging the rear end of said axial rod.

5. The combination of a cylinder having open ends, a cap-member removably closing the front end of the cylinder and provided with a cross bar having a bearing opening, a cartridge within the cylinder having an axial rod hearing at its front end in the opening of the cross bar, an apertured cross bar in the cylinder engaging the rear end of said axial rod, and means whereby the passage of water through the cylinder to the cap-member causes the cartridge to rotate.

6. The combination with a cylinder, a capmember removably closing its front end, a rod arranged axially of the cylinder and suitably journaled, and a cartridge rigidly secured to said rod and provided at its rear end with a recess equipped with a spirally extending inwardly projecting blade.

7. Avforaminous cartridge provided with an axial tube and with a recess in its rear end surrounding said tube and with a spirally extending inwardly projecting blade in said recess.

In testimony whereof I aliix my signature, in the presence of two witnesses.

HENRY SIEBEN.

Witnesses:

- H. C. RODGERS,

G. Y. THoRPE. 

